13490-32-9 
 
51868-96-3 
 
4-amino-N-ethoxy-1,2,5-oxadiazole-3-carboxamidine 
 
4-amino-N-diethoxyphosphoryl(pyrrolidin-1-yl)methyl-1,2,5-oxadiazole-3-carboxamidine 
[1]Phosphorus,SulfurandSiliconandtheRelatedElements,2016,vol.191,p.1000-1008